Question

7) The area of a square plot is 800 m2. Find the estimated length of the side of the plot

Answer 1

let the side of the square plot = a m
area = 800m2

a^2=800m2

a= square root 800m2
a=20*root2
a= 20*1.414
a=28.28 m approximately

Answer 2

The estimated length of the side is $\bold{20 \sqrt{2} \ m}$

To find:

The length of the side = ?  

Step-by-step explanation:

If ‘a’ is the length of side of a square then area of the square is $a^{2}$.

Given the area of the square plot is 800 $m^{2}$

$\because A r e a=a^{2}$

To determine the side of the square, we need to take square root of the area of the square.

$\Rightarrow a=\sqrt{A r e a}$

On substituting, the area in the above formula, we get,

$a=\sqrt{800}$

$=\sqrt{400 \times 2}$

$\therefore a=20 \sqrt{2} \ m$